I too experience crashes when loading certain SIDs. This happens both with default 1.4.1 navdata (cyle 1109) and with the latest cycle (cycle 1201). I'm on Win XP 32, X-plane 9.70. To reproduce Departure airport: EKBI Destination airport: EKCH Enter route: DCT ABINO T56 TESPI [EXEC] Now, depending on which SID I select, either X-Plane crashes or not (appropiate RWY is selected using the right softkey first, then, when pressing left softkey to select SID, X-Plane crashes immediately): ABIN4A: Works OK. ABIN4B: Crash! ALS3A: Works OK. BAMP2A: Works OK. RADI3A: Works OK. MIKR2A: Crash! The crash seems to be fully reproducible depending on which SID I select. Now this may not be significant, but when I look inside the EKBI.xml file, the two SIDs that cause a crash have one thing in common: Waypoints of type = ConstHdgToAlt. The SIDs that work OK do not have this waypoint type (I'm just guessing here...). It is very strange, but there is no crash_log.txt produced in the X-Plane 9 directory. Only Data.txt, Cycle Dump.txt and Log.txt are produced. Hope this information can be of help. I'll be happy to do further testing on my system, just advise what to test. Regards, Per